Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 27.
A159420
Number of n X n arrays of squares of integers with every (n-1)X(n-1) subblock summing to 27.
Terms
- a(0) =88a(1) =223176a(2) =965933960
External references
- oeis: A159420